Tallg,

My cat was born in my flat and has lived there ever since. She's *never* been outside. I don't think she knows what she's missing, so she's content (I think). She does enjoy sitting on the window sill waiting for the birds to come and eat the birdseed I leave out.

All of Chelsea's tips are fantastic, but I have heard of cases (very, very rare) of people on compounds deliberately and indiscriminately poisoning cats. Perhaps they are trying to kill strays and inadvertently killing housecats, I don't know. Perhaps kids with too much time, but in any case, just be aware that this has been known to happen. Try to always keep an eye on your cat and don't allow her/him to wander off.